To find packets in the TCP byte stream a pattern and the following toatl packet length are used.
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#include <baos/ip/TcpIO.h>
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| PacketizerBase (const Buffer &startPattern, std::uint16_t sizePosition, std::uint16_t sizeBytes) |
| Construct a new Packetizer Base object from a given pattern. More...
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virtual bool | packetize (const Buffer &buf, std::uint16_t bufferSize, std::int32_t &offset, std::uint16_t &length)=0 |
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const Buffer | startPattern_ |
| The pattern which marks the beginning of a packet in the byte stream.
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const std::int32_t | sizePosition_ {-1} |
| The 0 based index of the total size information in packet.
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const std::uint16_t | sizeBytes_ {0} |
| From how many bytes is the total size composed.
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To find packets in the TCP byte stream a pattern and the following toatl packet length are used.
Provides information about a specific pattern to find packets in the TCP stream
◆ PacketizerBase()
Construct a new Packetizer Base object from a given pattern.
- Parameters
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startPattern | A Buffer containing the bytes which mark the beginning of a packet |
sizePosition | The 0 based index of the total size information in packet |
sizeBytes | From how many bytes is the total size composed |
◆ packetize()
virtual bool packetize |
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const Buffer & |
buf, |
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std::uint16_t |
bufferSize, |
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std::int32_t & |
offset, |
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std::uint16_t & |
length |
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) |
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pure virtual |
- Parameters
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buf | reference to the buffer in which the packet should be found |
bufferSize | the actual size of the buffer |
offset | [out] if a packet was found the start offset of it |
length | [out] if a packet was found the length of the packet(overall) |
- Returns
- true if packet was found false otherwise
Implemented in KnxNetIPPacketizer.
The documentation for this class was generated from the following file: